Pic(k) of the Week: Krausen for priming

A cellarman —very carefully— is  collecting wort from a fermentation tank at high krausen. He'll use it to prime a cask.

Translation:

• wort: unfermented beer, or beer during fermentation.
• high krausen: the most active stage of fermentation, with millions of yeast cells per milliliter.
• prime a cask: as a rule of thumb, a liter or so of high krausen wort contains sufficient yeast and unfermented sugar to carbonate 10.8 gallons of beer in a cask.

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• Pic(k) of the Week: one in a weekly series of personal photos, usually posted on a Saturday, and often of a good fermentable as subject.
  
• Specifically, this photo is one in a photo montage depicting cask production at Heavy Seas Brewery in Baltimore, Maryland.